getDescriptor

This will contain the active descriptor that is associated
with this failure. In the case of FAILURE_TO_REIFY it will
contain the descriptor that failed to reify. In the
DYNAMIC_CONFIGURATION_FAILURE case this will return null.
In SERVICE_CREATION_FAILURE and SERVICE_DESTRUCTION_FAILURE
it will contain the descriptor whose create or destroy methods
failed. In the case of VALIDATE_FAILURE it will contain
the descriptor that failed the security check

getInjectee

This will contain information about the Injectee that was being
injected into when the error occurred.

In the case of FAILURE_TO_REIFY this will be the injectee that was
being looked up to satisfy the injection point, or null if this lookup
was due to an API call.

In the case of VALIDATE_FAILURE this will contain the injectee that
was being looked up when the failure occurred or null if this was a
lookup operation or the injectee is unknown for some other reason

In the cases of DYNAMIC_CONFIGURATION_FAILURE, SERVICE_CREATION_FAILURE and
SERVICE_DESTRUCTION_FAILURE this will return null.